Boiler-cleaner.



F. MclLVANE.

BOILER CLEANER.

APPLICATION FILED JUNE 10; 1916.

1 345,7 50. Patented Nov. 6, 1917.

Inventor UNITED STATES PATEN T QFFICE.

FRANK MCILVA-NE, F DETROIT, MICHIGAN, ASSIGNOR TO DIAIVIGN D POWERSPECIALTY COMPANY, 01 DETRGIT, MICHIGAN, A CORPORATION OF MICHIGAN.

BOILER-CLEANER.

Application filed June 10, 1916.

the blower type, and refers more particularly to an improvedconstruction adapted for use as a side unit.

Among the objects of the invention are to provide a side unit which canbe adjustably actuated from the exterior of the furnace wall; to soarrange and mount the unit that the nozzles can be rotatably withdrawnto a position protected from the furnace heat when not in use; toprovide a mounting that will permit the nozzle header to be rotatablyadjusted through an arc of approximately 180; and to provide a frame boxfor the blower unit which both contains the blower and forms a supportin the setting Wall.

The invention further resides in the simplified construction of theblower unit and its operating mechanism, and also in the arrangementwhereby the work of installation and operation is materially reduced,and in such details of construction and arrangements and combinations ofparts as will hereinafter appear.

In the drawings:

Figure 1 is a front elevational view of a blower unit embodying myinvention;

Fig. 2 is a side elevational view of the construction shown in Fig. 1;

Fig. 3 is a top plan view thereof; and

Fig. 4 is a cross-sectional View of a modified construction of nozzleheader.

In detail, A designates the furnace wall, having an opening B withinwhich fits a frame-box C. The latter is preferably formed of cast ironor other material sufiiciently strong to support a part of the settingwall, as well as forming a housing for the blower unit D.

The blower unit comprises a nozzle header F provided with a plurality ofnozzles G spaced to blow between the boiler tubes G. This nozzle headeris carried by a pipe E, which at its lower end is connected by acoupling H to a pipe I rotatably mounted in bearing supports J. The pipeI, in

Specification of Letters Patent.

Patented Nov. 6, 1917.

Serial 1105102333.

turn, is connected by a swiveled pipe connection coupling L to a'steampipe M. The arrangement is such that the pipe E carrying the nozzleheader F can be rotatably'adjusted about the pipe I as an axis. Thisadjustment permits the nozzle header to be rotatably withdrawn into theframe-box and away from the furnace heat when not in use. When it isdesired to clean the boiler tubes, it'is only necessary to rock the pipeE and the nozzle header F about its axis so as to successively directthe nozzles (Jr against the various boiler tubes. WVhere the nozzleheader is provided with a single row of nozzles, the lower wall of theframe-box C is cut away, as shown at G, to permit the pipe E to berocked about the axis I through an arc of approximately 180, to the position shown in dotted lines in Fig. 2. Thus, upon the initial movement ofthe header the nozzles G will dischaige a jet of steam upwardly to cleanthe top portions of the boiler tubes, and will, upon its continuedrotation, successively clean all portions of the boiler tubes G. Inplace of rotating the header and its supporting pipe E through so largean arc, the header may be supplied with an additional row of nozzles Gas shown in Fig. 4.

For manually operating the nozzle header from the exterior of thefurnace wall, I preferably provide the pipe E with a fitting N, to whichis pivotally connected at 0 an operating rod P. The latter extendsoutward through the front wall Q of the frame box, and at its end isprovided with an operating handle B. At the point where the operatingrod P passes through the wall of the frame-box, there is preferably anelongated slot S, so that the nozzle header can be turned through thedesired arc.

The invention, however, is not limited to the particular operatingmechanism shown, nor to the details of construction except as specifiedin the appended claims.

What I claim as my invention is 1. In a boiler cleaner, the combinationwith aframe box adapted to be set in the furnace wall, said box having aplate substantially flush with the outer surface of said wall, of asupply pipe extending into said frame box, a pipe having swivelconnection with said supply pipe within said box, a header carried bythe last mentioned pipe and extending parallel to the axis of swivelmotion, and a member for actuating swivel motion extending from theswinging pipe through said plate at the front of the frame box.

2. In a boiler cleaner, the combination with a furnace wall, of a casingmounted in said wall, a steam pipe entering said casing, a pipe havingswivel connection with said steam pipe at one end thereof, a jet headermounted upon the other end of the 1ast-mentioned pipe, said header beingdisplaced through angular motion of said swivel pipe from a positionwithin said casing to a position beneath the casing, and means formanually actuating said motion.

3. In a boiler cleaner, the combination with a frame-box adapted to beset in the furnace wall, of a steam supply pipe extending into said box,an adjustable pipe having swivel connection within said box and adjacentone of the walls thereof with said supply pipe, said wall having acutaway portion to increase the are through which the adjustable pipemay swing, a jet header carried by the free end of the adjustable pipeand displaceable by said pipe from a position within the frame-box tovarious positions exterior thereto, and means for swivelly displacingthe adjustable pipe.

In testimony whereof I atlix my signature.

FRANK MCILVANE.

Copies of this patent may be obtained tor five cents each, by addressingthe Commissioner of Patents Washington, D. C.

